Data Sheet

Parameter Symbol Min. Value Max.Value Unit Remarks
Non-Quadrature Mode
(See Fig. 6 & 9)
Clock A - High Pulse Width t6 12 - ns -
Clock A - Low Pulse Width t7 12 - ns -
Direction Input B Set-up Time t8S 12 - ns -
Direction Input B Hold Time t8H 10 - ns -
CNT_EN Set-up Time t9S 12 - ms -
CNT_EN Hold Time t9H 12 - ms -
Clock Frequency (non-Mod-N) fA - 40 MHz fA = (1/(t6 + t7))
Clock to DFLAG/ or t10 20 - ns -
LFLAG/ delay
DFLAG/ output width t11 12 - ns t10 = t7
Transient Characteristics. (TA = -25˚C to +85˚C, VDD = 3.3V ± 10%)
Parameter Symbol Min. Value Max.Value Unit Remarks
(See Fig. 2)
SCK High Pulse Width tCH 120 - ns -
SCK Low Pulse Width tCL 120 - ns -
SS/ Set Up Time tCSL 120 - ns -
SS/ Hold Time tCSH 120 - ns -
Quadrature Mode
(See Fig. 5, 7 & 8)
fCKI High Pulse Width t1 24 - ns -
fCKI Pulse Width t2 24 - ns -
fCKI Frequency fFCK - 20 MHz -
Effective Filter Clock fF Period t3 50 - ns t3 = t1+t2, MDR0 <7> = 0
t3 100 - ns t3 = 2(t1+t2), MDR0 <7> = 1
Effective Filter Clock fF frequency fF - 20 MHz fF = 1/ t3
Quadrature Separation t4 52 - ns t4 > t3
Quadrature Clock Pulse Width t5 105 - ns t5 ≥ 2t3
Quadrature Clock frequency fQA, fQB - 4.5 MHz fQA = fQB < 1/4t3
Quadrature Clock to Count Delay tQ1 4t3 5t3 - -
x1/x2/x4 Count Clock Pulse Width tQ2 25 - ns tQ2 = (t3)/2
Index Input Pulse Width tid 60 - ns tid > t4
Index Set Up Time tis - 10 ns -
Index Hold Time tih - 10 ns -
Quadrature clock to tfl 4.5t3 5.5t3 ns -
DFLAG/ or LFLAG/ delay
DFLAG/ output width tfw 52 - ns tfw = t4
Non-Quadrature Mode
(See Fig. 6 & 9)
Clock A - High Pulse Width t6 24 - ns -
Clock A - Low Pulse Width t7 24 - ns -
Direction Input B Set-up Time t8S 24 - ns -
Direction Input B Hold Time t8H 24 - ns -
Clock Frequency (non-Mod-N) fA - 40 MHz fA = (1/(t6 + t7))
Clock to DFLAG/or t9 40 - ns -
LFLAG/ delay
DFLAG/ output width t10 24 - ns t10 = t7
7366R-081507-6